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Cheap flights from Colorado to New York from $105

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to New York departing on 8/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Colorado to New York

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
6:35 am - 5:58 pm
DEN
-
ISP
9h 23m
1 stop
Frontier Logo
11:00 am - 11:11 pm
ISP
-
DEN
14h 11m
1 stop
$230Frontier
Sat, May 30 - Wed, Jun 3
Frontier Logo
6:35 am - 5:58 pm
DEN
-
ISP
9h 23m
1 stop
Frontier Logo
6:02 pm - 11:11 pm
ISP
-
DEN
31h 09m
1 stop
$231Frontier
Sat, May 30 - Tue, Jun 2
Frontier Logo
6:35 am - 5:58 pm
DEN
-
ISP
9h 23m
1 stop
Frontier Logo
11:00 am - 11:11 pm
ISP
-
DEN
14h 11m
1 stop
$240Frontier
Sat, May 23 - Wed, Jun 3
Frontier Logo
11:56 pm - 10:05 am
DEN
-
ISP
8h 09m
1 stop
Frontier Logo
11:00 am - 11:11 pm
ISP
-
DEN
14h 11m
1 stop
$244Frontier
Wed, May 27 - Mon, Jun 1
Frontier Logo
6:00 am - 8:57 pm
DEN
-
ISP
12h 57m
1 stop
Frontier Logo
10:48 am - 10:54 pm
ISP
-
DEN
14h 06m
1 stop
$250Frontier
Wed, Jun 10 - Wed, Aug 26
Frontier Logo
11:56 pm - 10:05 am
DEN
-
ISP
8h 09m
1 stop
Frontier Logo
6:02 pm - 11:11 pm
ISP
-
DEN
31h 09m
1 stop
$252Frontier
Thu, May 28 - Tue, Jun 2
Frontier Logo
11:56 pm - 10:05 am
DEN
-
ISP
8h 09m
1 stop
Frontier Logo
11:00 am - 11:11 pm
ISP
-
DEN
14h 11m
1 stop
$254Frontier
Tue, May 26 - Thu, Jun 4
Frontier Logo
11:56 pm - 10:05 am
DEN
-
ISP
8h 09m
1 stop
Frontier Logo
11:00 am - 11:11 pm
ISP
-
DEN
14h 11m
1 stop
$260Frontier
Thu, May 21 - Wed, Jun 3
Frontier Logo
6:00 am - 7:05 pm
DEN
-
ISP
11h 05m
1 stop
Frontier Logo
10:48 am - 10:54 pm
ISP
-
DEN
14h 06m
1 stop
$264Frontier
Sat, Jun 13 - Sat, Aug 29
Southwest Logo
9:25 am - 11:10 pm
COS
-
ISP
11h 45m
2 stops
Southwest Logo
2:45 pm - 9:35 pm
ISP
-
COS
8h 50m
2 stops
$553Southwest
Sat, Jun 6 - Sat, Jun 13

Frontier flights from Colorado to Islip, New York

Our best Frontier deals on Colorado to Islip, New York flight tickets
Frontier
May 30
DEN6:35 amDenver Intl
9h 23m
1 stop
ISP5:58 pmIslip Long Island
Jun 3
ISP11:00 amIslip Long Island
14h 11m
1 stop
DEN11:11 pmDenver Intl
$230
Frontier
May 30
DEN6:35 amDenver Intl
9h 23m
1 stop
ISP5:58 pmIslip Long Island
Jun 2
ISP6:02 pmIslip Long Island
31h 09m
1 stop
DEN11:11 pmDenver Intl
$231
Frontier
May 23
DEN6:35 amDenver Intl
9h 23m
1 stop
ISP5:58 pmIslip Long Island
Jun 3
ISP11:00 amIslip Long Island
14h 11m
1 stop
DEN11:11 pmDenver Intl
$240

Southwest flights from Colorado to Islip, New York

Our best Southwest deals on Colorado to Islip, New York flight tickets
Southwest
Jun 9
DEN5:00 amDenver Intl
6h 45m
1 stop
ISP1:45 pmIslip Long Island
Aug 29
ISP11:55 amIslip Long Island
10h 20m
2 stops
DEN8:15 pmDenver Intl
$402
Southwest
Jun 9
DEN11:55 amDenver Intl
8h 40m
2 stops
ISP10:35 pmIslip Long Island
Aug 29
ISP11:55 amIslip Long Island
8h 40m
2 stops
DEN6:35 pmDenver Intl
$407
Southwest
May 30
DEN2:05 pmDenver Intl
7h 15m
2 stops
ISP11:20 pmIslip Long Island
Jun 2
ISP12:30 pmIslip Long Island
9h 00m
2 stops
DEN7:30 pmDenver Intl
$409

momondo Fare Finder

 
Customize your flight search to find flights from Colorado to Islip, New York that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated May 11, 2026.
Use the filters below to find and compare flights from Colorado to Islip, New York that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverIslip

DEN - ISP

DENISP

Denver Intl

Sat 5/30

6:35 am-5:58 pm

1 stop9h 23m

Islip Long Island

Wed 6/3

11:00 am-11:11 pm

1 stop14h 11m

$230

DenverIslip

DEN - ISP

DENISP

Denver Intl

Sat 5/30

6:35 am-5:58 pm

1 stop9h 23m

Islip Long Island

Tue 6/2

6:02 pm-11:11 pm

1 stop31h 09m

$231

DenverIslip

DEN - ISP

DENISP

Denver Intl

Sat 5/23

6:35 am-5:58 pm

1 stop9h 23m

Islip Long Island

Wed 6/3

11:00 am-11:11 pm

1 stop14h 11m

$240

DenverIslip

DEN - ISP

DENISP

Denver Intl

Wed 5/27

11:56 pm-10:05 am

1 stop8h 09m

Islip Long Island

Mon 6/1

11:00 am-11:11 pm

1 stop14h 11m

$244

DenverIslip

DEN - ISP

DENISP

Denver Intl

Wed 6/10

6:00 am-8:57 pm

1 stop12h 57m

Islip Long Island

Wed 8/26

10:48 am-10:54 pm

1 stop14h 06m

$250

DenverIslip

DEN - ISP

DENISP

Denver Intl

Thu 5/28

11:56 pm-10:05 am

1 stop8h 09m

Islip Long Island

Tue 6/2

6:02 pm-11:11 pm

1 stop31h 09m

$252

DenverIslip

DEN - ISP

DENISP

Denver Intl

Tue 5/26

11:56 pm-10:05 am

1 stop8h 09m

Islip Long Island

Thu 6/4

11:00 am-11:11 pm

1 stop14h 11m

$254

DenverIslip

DEN - ISP

DENISP

Denver Intl

Thu 5/21

11:56 pm-10:05 am

1 stop8h 09m

Islip Long Island

Wed 6/3

11:00 am-11:11 pm

1 stop14h 11m

$260

DenverIslip

DEN - ISP

DENISP

Denver Intl

Sat 6/13

6:00 am-7:05 pm

1 stop11h 05m

Islip Long Island

Sat 8/29

10:48 am-10:54 pm

1 stop14h 06m

$264
Quickest round-trip

Colorado SpringsIslip

COS - ISP

COSISP

Colorado Springs

Sat 6/6

9:25 am-11:10 pm

2 stops11h 45m

Islip Long Island

Sat 6/13

2:45 pm-9:35 pm

2 stops8h 50m

$553

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to New York from

How to get the cheapest flight ticket from Colorado to Islip, New York

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Can stopping save me money on Colorado to Islip, New York flights?

You could potentially save up to 72% on your flight if you consider stops on a Colorado to Islip, New York flight.

Cheap Colorado to Islip, New York flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to Islip, New York

Fastest flight time

8h 09m

Direct flights

None
The fastest flight from Colorado to Islip, New York takes 8h 09m
There are no direct flights from Colorado to Islip, New York. There are no popular flight routes from Colorado to Islip, New York.
Search flight deals

Frequently asked questions about flying from Colorado to Islip, New York

  • When did momondo last update prices for flights from Colorado to Islip Long Island Airport?

    Prices for flights from Colorado to Islip Long Island Airport are updated daily.

  • How many operators does momondo search for flights from Colorado to Islip Long Island Airport?

  • How old do you have to be to fly from Colorado to Islip Long Island Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Colorado to Islip Long Island Airport.

  • What documentation or ID do you need to fly to Islip Long Island Airport?

    The necessary travel and health documents for your Islip Long Island Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Colorado to Islip, New York

Compare and see reviews for airlines that fly from Colorado to Islip, New York with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $375Free CancellationRating
8.0
4,298 reviews
Search Southwest flights

Traveling to a place near New York?

Book flights to New York if you plan to visit one of these locations
Montauk
Riverhead
Sag Harbor
Southampton
Amagansett

Why use momondo?

Why should I use momondo to find a flight deal from Colorado to Islip?

It is quick and easy to find Colorado to Islip flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Islip that suits you.

Can I find flights from Colorado to Islip with flexible booking policies on momondo?

momondo does allow users to show only those flights to Islip from Colorado which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Colorado to Islip?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Islip from Colorado.

I’m not ready to book a flight from Colorado to Islip right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Colorado to Islip now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Islip and let you know when they change.

An easier way to manage your Islip, New York trip

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